EP 3832332 B1 20211215 - HIGH VOLTAGE INTERLOCK CIRCUIT AND DETECTION METHOD
Title (en)
HIGH VOLTAGE INTERLOCK CIRCUIT AND DETECTION METHOD
Title (de)
HOCHSPANNUNGSVERRIEGELUNGSSCHALTUNG UND DETEKTIONSVERFAHREN
Title (fr)
CIRCUIT DE VERROUILLAGE À HAUTE TENSION ET PROCÉDÉ DE DÉTECTION
Publication
Application
Priority
- CN 201910143766 A 20190225
- EP 20159360 A 20200225
Abstract (en)
[origin: EP3699620A1] The present disclosure provides a high voltage interlock circuit and a detection method thereof. The circuit comprises: a power module (V), wherein a positive electrode of the power module (V) is connected to one end of a current generating module (C); the current generating module (C), wherein the other end of the current generating module (C) is connected to a first terminal of a high voltage component module (H) to inject a constant DC current into the high voltage component module (H); a first voltage dividing module (Fl), wherein one end of the first voltage dividing module (Fl) is connected to a second terminal of the high voltage component module (H), and the other end of the first voltage dividing module (Fl) is respectively connected to a negative electrode of the power module (V) and a power ground; and a processing module (P) configured to determine a fault of the high voltage component module (H) based on a first voltage collected from the second terminal of the high voltage component module (H). Embodiments of the present disclosure can improve accuracy of determination of fault for the high voltage interlock circuit.
IPC 8 full level
G01R 31/52 (2020.01)
CPC (source: EP US)
B60L 50/16 (2019.01 - US); G01R 31/316 (2013.01 - US); G01R 31/52 (2020.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3699620 A1 20200826; EP 3699620 B1 20210331; CN 109782160 A 20190521; EP 3832332 A1 20210609; EP 3832332 B1 20211215; US 11320481 B2 20220503; US 2020274289 A1 20200827
DOCDB simple family (application)
EP 20159360 A 20200225; CN 201910143766 A 20190225; EP 21154075 A 20200225; US 202016798365 A 20200222